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CVE-2019-12866

28
FAUCET Score

CVE-2019-12866 is a critical Insecure Direct Object Reference vulnerability with an authorization bypass, affecting JetBrains YouTrack. This flaw allows unauthenticated attackers to achieve full compromise (confidentiality, integrity, availability) due to low attack complexity and no user interaction required. While the issue was fixed in 2018.4.49168, there is no public exploit code, evidence of active exploitation, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2018.4.49168CPE matchmatch criteria
cpe:2.3:a:jetbrains:youtrack:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0194 is in the 67th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.jetbrains.com / blog/2019/06/19/jetbrains-security-bulletin-q1-2019
Vendor Advisory